HP Surestore Disk Array FC60 HP SureStore E Disk Array 12H User's and Service - Page 81

Logical Drv Changes, Create L-Drv, Delete L-Drv, Renumber L-Drv

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Operating the Control Panel Using Control Panel Menus Logical Drv Changes The Logical Drv Changes menu enables you to change logical drive parameters for the array. A logical drive is a portion of the array capacity that appears to the operating system as a physical disk. Each logical drive corresponds to a SCSI Logical Unit (LUN) zero through seven. However, the data contained in each logical drive is distributed across all disks in the array, so there is no correlation between a logical drive and a single disk in the array. The entire array capacity can be divided into up to eight logical drives. Only capacity that has been assigned to a logical drive is available to the operating system. Unassigned capacity is used to increase the array performance or may be used during a rebuild operation. Create L-Drv Creates a logical drive (SCSI LUN) number 0 to 7 with a capacity size of 100 Megabytes to a maximum of the total remaining capacity available in the array. Logical drives may be created any time disk space is available (or becomes available). Creating a logical drive makes the specified disk capacity available to the operating system. After creating a logical drive, you must configure the logical drive into your operating system to use the capacity. CAUTION! Deleting a logical drive (LUN) destroys all data on the logical drive. Before deleting a logical drive, make backup copies of the files you want to save or move the files to another logical drive. Delete L-Drv Deletes a logical drive (SCSI LUN) number 0 to 7. When you delete a logical drive, its capacity is added to the unallocated capacity of the array. CAUTION! Before renumbering a logical drive, you should know the impact this will have on the operating system. After you renumber a logical drive, make sure you perform the necessary steps to configure the renumbered logical drive into the operating system. Renumber L-Drv Renumbers any logical drive (SCSI LUN) number 0 to 7 to any logical drive (SCSI LUN) number 0 to 7. One reason for renumbering a logical drive is if you want to swap logical drive 0 with another logical drive you want to serve as the system boot drive. Control Panel 81

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Operating the Control Panel
Using Control Panel Menus
81
Control Panel
Logical Drv Changes
The Logical Drv Changes menu enables you to change logical drive parameters for the array. A logical
drive is a portion of the array capacity that appears to the operating system as a physical disk. Each logical
drive corresponds to a SCSI Logical Unit (LUN) zero through seven. However, the data contained in each
logical drive is distributed across all disks in the array, so there is no correlation between a logical drive
and a single disk in the array.
The entire array capacity can be divided into up to eight logical drives. Only capacity that has been
assigned to a logical drive is available to the operating system. Unassigned capacity is used to increase the
array performance or may be used during a rebuild operation.
Create L-Drv
Creates a logical drive (SCSI LUN) number 0 to 7 with a capacity size
of 100 Megabytes to a maximum of the total remaining capacity
available in the array. Logical drives may be created any time disk
space is available (or becomes available). Creating a logical drive
makes the specified disk capacity available to the operating system.
After creating a logical drive, you must configure the logical drive into
your operating system to use the capacity.
CAUTION!
Deleting a logical drive (LUN) destroys all data on the logical drive. Before
deleting a logical drive, make backup copies of the files you want to save or move the files
to another logical drive.
Delete L-Drv
Deletes a logical drive (SCSI LUN) number 0 to 7. When you delete a
logical drive, its capacity is added to the unallocated capacity of the
array.
CAUTION!
Before renumbering a logical drive, you should know the impact this will have
on the operating system. After you renumber a logical drive, make sure you perform the
necessary steps to configure the renumbered logical drive into the operating system.
Renumber L-Drv
Renumbers any logical drive (SCSI LUN) number 0 to 7 to any logical
drive (SCSI LUN) number 0 to 7. One reason for renumbering a logical
drive is if you want to swap logical drive 0 with another logical drive
you want to serve as the system boot drive.